after_save supports block with arity of 2 for access to raw attributes

[macfanatic]

This allows us to inspect the raw contents from the CSV if the record
encountered some errors.

The value in the CSV might be present, but yet when transformed
disappears if invalid (say referencing another resource that is not
accessible).

We use like so:

class Importer
  model Task

  column :assignee, to: ->(name) { User.active.find_by(name: name) }

  after_save do |task, attributes|
    if task.errors[:assignee].present? && attributes['Assignee'].present?
      task.errors.add(:assignee, "'#{ attributes['Assignee'] }' is not part of this project."
    end
  end
end

[pcreux]

👏 (and sorry for the delay....)